Combined adding and listing machine.



W. F. McCALEB.

COMBINED ADDING AND LISTlNG MACHINE.

1,257,620. APPLICATION FILED JUNE 3.1915. Patental Feb. 26,

6 SHEETS-SHEET I.

In venor: JIZzZferZJL C'aZ'eZ,

W. F. McCALEB.

COMBINED ADDING AND LISTING MACHINE.

APPLICATION FI'LED JUNE 3.1915. 1,257,620. Patented Feb. 26,1918. 6 SHEETS-SHEET 2- w. F. McCALEB.

COMBINED ADDING AND LISTING MACHINE- APPLlCATlON FILED JUNE 3. 195- 1,257,620. Patented Feb. 26, 1918 6 SHEET$-SHEET 3.

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COMBINED ADDING AND LISTING MACHINE.

APPLICATION FILED JUNE 3, 1915.

1 ,257,620. Patented Feb. 26, 1918.

6 SHEETS-SHEET 4- I weitor: Q\ mriml caz z W. F. McCALEB.

COMBINED ADDING AND LISTING MACHINE.

APPLICATION FILED JUNE 3.1915.

1,257,620. Patented Feb. 26, 1918.

6 suns-sum s.

W. F. McCALEB.

COMBINED ADDING AND LISTING MACHINE.

APPLICATION FILED JUNE 3.191s.

1,257,620, Patented Feb. 26,1918.

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COMBINED ADDING- AND LISTINGMACHINE.

Specification of Letters Patent.

Patented Feb. 26, 1918.

Application filed June 3, 1915. Serial No. 31,809.

To all whom it mag concern:

Be it known that I, WALTER F. MCGALEB, a citizen of the United States, residing in Dallas, in the county of Dallas and State of Texas, have invented new and useful In provements in Combined Addin and Listmg Machines, of which the fol owing is a specification.

This invention relates to certain new and useful improvements in a combined adding and listing machine, and has special reference to improvements in that type of ma- .chine forming the subject-matter of my 'Paltent No. 1,153,129, granted September 7th, 19 5.

-The invention has for its general object to provide an improved machine of the character'referr'ed to which shall be character-- ized by simplicity and economy of construction and ease and rapidity of operation. The machine forming the subject-matter of the present invention is designed to meet the wants of the trade for an mexpensive machine capable of the few simple operations involved in adding, listing and totaling, (including sub-totaling), and the novel features of the invention are concerned with mechanism for permitting these functions to be performed.

Statedmore in detail, specific objects of the invention relate to improvement in sector mechanism for actuating an accumulator; to improved mechanism for actuating the accumulator as a whole toward and from the sectors; to novel listing mechanism combined with the movable sectors which actuate the addin wheels of the accumulator; to novel mec anism for controlling the movements of the sectors; and to various combinations of parts whereby the operations. of the machine, as hereinafter more fully set out, are accomplished.

The invention is illustrated in the accom panying drawings, in which- Figure 1 is a top plan view;

Fig. 2 is aview in side elevation, partly in section, the view being taken from the right-hand side of the machine, the line of section being just inside the side frame;

Fig. 3 is a view similar to Fig. 2, the line of. section being approximately through the middle of the machine;

; Fig. 4 is a top plan view of the mechanism, the case being in horizontal section;

Fig. 5 is a fragmentary longitudinal section illustrating the action of the restoring mechanism for the sectors;

Fig. 6 is a fragmentary longitudinal section illustrating the parts associated with the total key;

Fig. 7 is a fragmentary longitudinal section illustrating the action of the carryover mechanism and partsof the printing mechanism;

Fig. 8 is a fragmentary section through the printing mechanism, showing the hammer trippers in the position they assume after the hammers have been tripped;

Fig. 9 is a detail view of the mechanism for hmitin the speed of the main actuating shaft and for restoring the shaft to normal position; and

Fig. 10 is a fragmentary plan view, on an enlarged scale showing the hammer trippers for the printing mechanism.

Referring now to the drawings, the numerals 1, 2, indicate side frame members which are substantially triangular in shape, and are connected at their'rear ends, (Fig. 6) by a cross rod 3, at their front ends by a shaft 4 journaled in screw bearings 5,

and at their apexes by a rock shaft 6 jourin position by screws 7. The frame members 1, 2, are secured on opposite sides of a rectangular base 8, andwhen in use the mechanism as a whole is covered by a casing 9 supported on said base and secured thereon in any suitable manner, as by screws. The casing 9 is preferably provided with side panels 10 of glass permitting observation of the mechanism. Journaled at opposite ends in the side frame members 1, 2. is a main actuating shaft 11, to one end of which is removably connected a 'crank handle 12, the head 13 of which projects through an opening in one of the side panels 10 (Fig. 4). Rotatably mounted on the shaft 11 are a series of hubs 14 (Figs. 3, 4 and 5) from one side of each of which extends forward an integral arm 15, and extending upward from the outer end of this arm is a said arms 19, as shown by Fig. 1, occupy a position of relatively close proximity to each other for the purpose of the listing operation, whereas the arms 15, with their sectors 16, are separated from each other by a considerable space. To effect the close proximity of the arm 19, said arms, on opposite sides of the longitudinal center of the machine, are bent inward to a greater or less extent, depending upon the distance of the hub 1d from the center of the shaft 11, said bent portions being indicated by the numeral 21. It will be understood that the sector 16, arm 15, hub 14, arm 19, with its bent portion 21, are in each instance formed as parts of a unitary, and preferably integral, structure, so that the sector moves in unison with the sector 16., The major portion of the sector 20 is also preferably formed integral with the arm 19. Suitable spacing rings 22 are interposed between the hubs 14:.

Pivotally mounted on the cross shaft 6 at the top of the machine (Fig. 3) are a series of dogs 23, correspondin in number to the sectors 16, and each of w ich has an arm 24 on the outer end of which is mounted a friction roller 25 which is adapted to releasably engage in the various recesses 18 of the corresponding sector 16. The roller 25 of each dog is held in yieldin engagement in one or the other of said recesses 18 by means of a short coil spring 2'6 connected at one end to the rear end or" said dog, at its lower side, and at its opposite end to a clip 27 mounted on a cross shaft 2 extending between and mounted in frame members 1, 2, or the machine. in order to provide for the fall of each sector 16 when totals are to be taken and the adding wheels returned to zero, I connect one end of a coil spring 29 to the rear end and upper side of each dog 23, and the other end of said spring to the portion of the arm 19 to the rear of the shaft 11, the springs 29 tending constantly to elevate the arms 19 with their sectors 20 and lower the arms 15 with their sectors 16. This tendency is normally overcome by the engagement of the rollers 25 in the recesses- 18. In order to provide for simultaneously releasing all of the rollers 25 from engage ment with the recessed edge of the sectors 16 I employ the following mechanism:

Secured on the rock shaft 6 is a hub 30 (Fig. 6) having an upward-extendingintegral lever 31 and a downward-extending 1n egral arm 32, the lever 31 extending through a slot 33 in the front wall of the casing 9 and being provided. with suitable button 34 for depressing it. Secured at one end in the arm 32 at a'slight distance from the rock shaft 6 is a rod 35, the opposite'end of which issec'ured in the end of a crank plate '36 (Figs. 2 and 4) secured on the,

having the hub 30 secured thereon. The rod 35 extends across the machine immediately over the upper edges of the arms 24 of the dogs 23 (Fig. 3), and by depressing the lever 31 the rod 35 will be forced against the arms 24 to move them rearward, thereby simultaneously releasing all of the rollers 25 from engagement with the serrated inner edges of the sectors 16, and permitting the springs 29 to draw said sectors downward.

Each of the listing sectors 20 comprises a curved head 37 provided with ten grooves 38 in'each of which is mounted a type-bar 39 provided with a digit 40 on its outer end, the digits running in order from the to to the bottom of the sector from 0 to 9. ach

of the type-bars 391's provided on its side.

with a stud 11 which projects through a slot a2 in a curved cover plate 43 secured to the grooved side of the head 37 and extending over the type-bar's. A coil spring 44 is secured at one end to each stud 41 and at its opposite end to a stud 45 mounted on the side of the cover plate &3. When in the normal or lower position shown in Fig. 3, the upper type-bar 39 of each of the listing sectors is in a horizontal position, and the grooves 38 in the sector head are so inclined that each of the remaining type-bars will be brought, in order, to a horizontal position as the listing sector is raised. When in the horizontal position, each type-bar 39 will be opposite a platen 46 (Figs. 2 and 3) with which cotiperates a feed roll 47. The numeral 48 indicates one of two similar supports mounted on the casing 9 for holding a roll of paper 4:9, the paper being passed from the roll 49 over a guide 50, between the rolls 46 and 47, and under the platen guides 51, in the usual manner. A, suitable inked ribbon is carried byfeeding spools 52 (Fig. 1) in the usual way, and such ribbon in practice will extend between the paper on the platen and the ends of the type-bars carrying the digits. I have not shown this part of the machine in great detail as the particular aper and ribbon feed mechanism employed vention.

Each of the adding wheel sectors 16 is provided at its upper end with an integral arm 53 which extends through a slot 54; in the front wall of the casing 9, and is proorms no part of the present in- I vided on its outer end with a button 55 to cular opening 57 is made in the wall of the casing through which the digits on the adding wheels, hereinafter referred to, may be readily seen. These openings, as will be understood, are of a size to render visible only the digit on the adding wheel appearin directly opposite the opening. A perio 58 may be re resented 1n anysuitable'fashion on the casing (Fi 1) to separate the two apertures 57 at t e right of the machine, through which digits indicating cents Would appear, from the three apertures, in order, to the left, through which digits indicating, respectively, units, tens and hundreds Wlll. appear; and a comma 59 may in like manner be represented on the casing to separate the aperture, indicating hundreds, from the last aperture to the left, indicating thousands. 1

I W111 now describe the accumulator mechanism by means of which the operation of adding is performed The numerals 60 and 61 (Fig. 4) indicate,

respectively, the side frame members of the accumulator, and mounted'therein is a shaft 62 on which the adding wheels 63 are journaled. Secured on the side of each of these adding wheels is a pinion 64 which is in linewith a sector 16, each of these pinions having ten teeth. Secured in turn to the side of each inion. is a ratchet wheel 65. The numera 66 (Fig. 3) indicates one of'a series of pawls WhlCh are pivotally mounted intermediate their ends on a rod 67 extendin between and mounted at its ends in the si e frames 60, 61, of the accumulator,said pawls having their upper'ends held in yieldmg contact with the teeth of the pinion 64 by means of coil springs 68 connected at one end to the lower end of each pawl, and at its other end to a rod 69 extending between andmounted at its endsin the side frame members of the accumulator. understood that a pawl 66 is provided for each pinion 64. Their purpose is to prevent accidental turning of the pinions.

cated'near the periphery'thereof, is a stud 70, which, in the rotation of the adding wheels, serves to release the carry-over mechanism, later referred to, to permit it to operate. The side frame members 60 and 61, between which the accumulatormechanism, as a whole, is mounted, are fixedly secured on the journaled shaft .4 previously referred to.

Extending between a'ndfiiredl secured at its ends in the side frame meni ers 60, 61,

0f the accumulator, near the bottom thereof. is a rod 71 (Figs. 2, 3 and 7) on which rod are pivotally mounted a series of' carry he movement of each of theseovers 72. carry-overs is controlled by a spring 73, one end of which is connected to a stud 74 on the carry-over and the other to a segmental plate 75 loosely mounted on the rod 67. The

springs 73 tend to draw the upper end of each carry-over inward or toward 'theadd- It will' be T y? however, permit the-pinions to be readily turned by the sectors 16. Projecting from one side of each adding wheel 63, and .lo-

ing wheels. Pivotally mounted at 76 on the upper end of each carry-over is a carry-over pawl 77 which is pivoted intermediate its ends, its rear end having one end of a coil spring 78 connected thereto, the opposite end Projecting from one side of each is adapted in operation to engage one or the 1 other of the teeth of a ratchet-wheel 65 to rotate its adding wheel 63, and above this finger the pawl is provided with a shoulder 82 which is adapted to engage a flat portion 83 between the teeth of the ratchet-wheel to arrest the movement of the latter.

Pivotally mounted at 84.- on the side of each carry-over is a guard 85, the upper end of which is bent to project over a curved lateral off-set 86 provided intermediate the ends of the carry-over, the projecting portion of the guard being indicated by 87 (Fig. 3). The" guard has at its lower end an integral arm 88, to the outer end of which is connected one end of a coil spring 89, the up er end of which latter is connected to the under side of the off-set portion of the carry-over. Extending between and secured at its ends in the side frame jecting laterally from the opposite side of the carry-over lock is a dog 93, the outer end of which is normally held in engagement with a shoulder 94 (see Figs. 2 and 3) on the offset 86 of each accumulator by a means of a spring 95}, one end of which is secured to the dog and'the other end to the segmental plate 75 before. referred to. Mounted on the carry-over member 72, near the inner end of the curved off-set 86, is a stud 96. The guard 85 normally engages the outer end of the dog 93, but when said dog is raised by astud 70,on'an addlng wheel engaging the'arm 92, the guard 85 springs inward against the stud 96 and under the end of said dog 93, so that the dog in the movement of the carry-over, as

later'described, will ride over the shoulder 94 and not engage it.

The numeral 97 (Figs. 3 and 4) indicates a rod mounted at its ends in the opposite slde frame members 60 and 61, which rod acts as a stop to limit the movement of the carry-overs when they are drawn outward by the carry-over restorer, as hereinafter described. Each of the carry-overs 72 has a curved portion 98 (Fig. 3) forming a nose-piece projecting below the rod 71, and in the path of a slide-plate 99, which acts as a carry-over restorer. This slide-plate (see Figs. 3 and 4) is provided near each end with a slot 100, in which is located the shouldered portion 101 of a screw-stud 102, the head of which is large enough to extend over the slot and hold the carry-over restorer plate 99 in slidable relation on the base 8 of the machine. The numerals 103 indicate studs located on the base 8 of the machine near the opposite ends of the carryover restorer plate 99, and the numerals 104 similar studs located on said plate 99 near opposite ends thereof. Coil springs 105 are connected at their opposite ends to these respective pairs of studs,.and tend normally to hold the plate 99 in a normal retracted position, or in that position in which it is farthest removed from the nosepieces 98 when the latter are in normal position, such position being shown in Figs. 2 and 3.

Adjustably mounted on studs 106 located on the carry-over restorer plate 99 adjacent to the studs 104 are two connecting rods 107 (Fig; 7) which extend rearward and are connected at their ends to downward-extending members 108 of a bell-crank levers 109, which latter are respectively pivoted as at 110, on a bracket member 111, which is secured to the base 8 of the machine. Secured on the main actuating shaft 11 are two crank arms 112, each of which has pivotally mounted on its lower end, as indicated at 113, a toggle member 114, the toggle member being pivoted intermediate its ends and constituting a dog. This toggle member occupies normally an inclined or broken relation with respect to the crank arm 112, as shown in Figs. 2, 3, and 7. A coil spring 115 connects the upperend of the toggle member 114 with the crank arm 112, tending normally to straighten said toggle member with respect to the crank arm. The other member 116 of the bell crank levers 109 is provided at its outer end with a stud 117. The lower end portion of the toggle member 114 is provided with a shouldered recess 118 which normally engages said stud 117, being held in such position by the spring115. In the first movement of the crank handle 12 in the forward direction the crank arms movement continues until the shouldered recess 118 rides off of thestud 117, when the springs 105 will immediately return the carry-over restorer plate 99 to normal position.

A sector (one or more) 16 having been depressed, the next main operation will be that of effecting the engagement between the accumulator and the sector depressed,

or if more than one sector has been de-- pressed, of all of the sectors. so afi'ectedl To accomplish this, the mechanism is'em ployed which will now be described;

The numeral 119 indicates a stub shaft mounted on the side frame member lot the machine (more clearly shown in Figs. 4 and 6) and on this stub shaft is journaled a bell crank lever 120 having the extremities of its arms 121, 122, connected by an integral angular cross member 123. J ournaled on the main actuating shaft 11 is a crank arm 124 which has pivotally mounted at '125,'on

its outer end, a toggle member 126, said toggle member being pivotedintermediate its ends, and its outer end, in turn, being pivotally connected, as at 127, to theouter end of the arm 122 of the bell cranklever 120. A coil spring 128 connects the other end of said to gle member 126 with the crank arm 124. he arts just described are normally in the position shown in Fig. 6, that is to say, with the toggle broken. A. crank arm 129, similar to the crank arm 124, is also j'ournaled on the shaft 11, and has pivotally mounted on its outer end, as indicatedjat 130, a toggle member 131, similar to the, toggle member 126. The outer end of this toggle member 131 is pivotally connected, as indicated at 132, to the outer end of the arm 121 of the bell crank lever 120. A spring 133, corresponding to the spring 128, tends normally to straighten the toggle member 131 with reference to the crank arm 129. Such movement of the toggle member 131 is limited by a stud 134 on the crank arm 129 to which one end of the draw the accumulator pinions 64 into mesh v with the sectors 16 and to move them out of mesh at the appropriate times. The free end of the lever arm or accumulator controlbar 137 is enlarged, as shown, and is provided with a recess 138 on its upper side and a recess 139 on its lower side. Projecting from the side frame member 60 of the accumulator is a stud 140 located toward the upper part of the frame, and the recess 138 on the upper side of the accumulator control-bar 137 normally engages this stud. Toward the bottom of the same side frame member of the accumulator is a similar stud 141 whichv is adapted to be engaged by the recess 139 of'the bar 137 when the same is moved downward, as later described. Pivotally connected at 142 to the accumulator control-bar 137 is the lower end of a link bar 143 whose upper end is pivotally connected to the lever 31. A spring 144 is secured at one end to the accumulator controlbar 137 and at its opposite end to a clip 145 mounted on the cross shaft 28. This spring holds the accumulator control-bar 137 normally with its recess 138 in engagement with the stud. 140 of the accumulator.

fFixedly secured on the main actuating shaft 11 is a double dogv or tappet 146 havin .arms 147and 148 projecting on opposite si esfof saidshaft. Mountedon the crank arm124 is a stud. 149 with which the dog 147 normally engages. A similar. stud 150 is provided on the crank arm 129. Asthe crank handle 12 is drawn forward the first action which occurs is the movement forward and return of the slide-plate 99, as previously described. As the movement. forward-of the crank handle continues the dog 148 will engage the stud 150 on the crank arm 129, and by moving said crank arm inward, break the toggle joint and move the toggle member 131 downward against the resistance of its spring 133. This movement of the crank arm 129 causes the bell crank 120 to be rocked rearward, thereby drawing the accumulator control-bar 137 in the same direction and pulling the accumulator rearward through engagement of the control-bar with the stud 140 until its pinions 64- engage with the sectors 16 which have been depressed. As'this engagement is efl'ectedthe to gle member 126 will have assumed a straig t position with respect to the crank arm 124, and thereby serves to temporarily lock the accumulator pinions in mesh with the sectors. h

The lower inner side of the frame member 60 of the accumulator is provided with an extension 151 (Figs. 3 and 7) having two semi-circular recesses, an, upper one 152, and a lower one 153, and a further yielding locking means for the accumulator 1s provided by a bell crank 15.4 WhlOh \is journaled on a stub shaft 155 mounted on the adjacent side frame 1 of the, machine, one arm 156 of said bell crank being provided at its outer end with a roller 157, and the outer end'of the other arm 158 being connected to one end of a coil spring159,

whose opposite end is connected to/a lug 160 on the base 8 of the machine. The spring 159 holds the roller 157 in yield ng contact with the accumulator frame member 60. so

.- 161 is secured .one end of a that said roller will one or the other of according to whether the accumulator is moved into or out of engagement with the this yielding lockyieldingly engage in sectors. The purpose of ing mechanism is to maintain the accumu-,

lator in the position to which it may have been moved by the accumulator control-bar the recesses 152, 153,

tion 162 of astudj 163 WhlOhprojects inward from the;lower rear portion of the side frame 1 of; the machine. To the clip sprin 164 whose opposite end is secured to a 011p 165 which is hooked over a stud 166 167 of a lever, member 168, which latter is fixedly secured on the main actuating shaft 11. Swiveled on the cross rod 3 is. a dashpot comprising a cylinder 169 in which works a piston 17 0, said piston having a p'as sageway. 171 --therethrough to permit the passa e of oil or other li uid within the on one arm cylin er from one side of t e piston to the Y other. The piston hasa stem 172 which is pivotally connected at its outer end, as at 173, to the opposite arm 1740f said lever member 168. These parts just. described constitute the controlling mechanism. for the main actuating shaft 11.1 As the crank handle 12 is drawn forward the lever memher 168 is rocked, thereby extending the spring 164 and causing the piston 170 to move inward in the cylinder 169. The cylinder being supplied with oilor other suitable fluid, ,the speed of movement of the.-

crank arm 12 will be retarded by the necessity of. the piston forcing the ;oil in front,

passageway 171 into the.

of it through the I opposite end of the cyhnden. As the pull on the crank handle 12 is released. the spring 164 effects the-return movementoftlie arts, 1 L

the speed being controlled byh heidas -pot in the same manner. as wheufth'e" handle is I being pulled forward;

Inorde'r to com e1 the o eratortocomplete thestroke oft e crank andl'ejin'either the forward or returnfoperatioiika sector plate 175 see Fi'gs.f2.and' 4) is edly secured on t e main actuating shaft 11. On the outer face of the sector'plate 175 is a segmental rack 176' having a series ofpe ripheralrecesses 177 therem, and pivotally mounted on a stubshaft 178-projecting inward from the side frame 2 1s a pawl 179 whose end portion projects into the path of the rack 176 so as to engage in the recesses 177 when the sector plate 175 is moved in v a stop to limit the rearward stroke of the operating handle, and the other 183, likewise engaging said stub shaft 178 to limit the forward stroke of the handle.

Journaled loosely on the main actuating shaft 11 near the opposite ends thereof are two lever arms 184 (see Figs. 2, 4 and 5) which are connected near their outer ends by a cross rod 185. Pivotally connected to each of the arms 184, as at 186, is a link bar 187 which is, in turn, pivotally connected to the end portion of an arm 188 of a bell crank 189, as at 190. The opposite arm 191 of the bell crank is provided with a toe portion 192 arranged and adapted to rest normally upon the base 8. The bell cranks 189 are yieldably held in normal position by g springs 193, said springs being'attached at one end to the arms 188 and respectively attached at their opposite ends to the stud 163 projecting from the side frame 1, and a special stud 194 projecting from the side frame 2, as more clearly shown in Fig. 4. In the normal position of the parts, as more clearly shown in full lines in Fig. 5, the cross bar 185 is in a position to be engaged by the sector arms 15 when the sectors 16 are de pressed to their lowermost position. Fixedly secured on the main actuating shaft 11 adjacent to each of the arms 184, are lever arms 195, said arms 195 having toggle members 196 pivotally mounted on the ends thereof. The toggle members 196 are yieldingly held in normally straightened position with respect to the arms 195 by springs 197 which are attached to studs 198 on the arms 195 and to studs 199 on extensions 200 of said toggle member 196, said extensions 200 bearing normally against the studs 198. Said toggle members 196 are provided with shouldered recessed portions 201 which are adapted to engage rollers 202 which are journaled on extensions 203 of the arms 188 of the bell cranks 189. As the crank han-. dle 12 is moved forward the arms 195 carrying the toggle members 196 swing rearward and upward, the members 196 riding over the rollers 202, causing the toggle members 196 to break or assume an angular relation with respect to the arms 195, the final position of the parts when the crank handle is in its extreme forward'position being best shown in dot and dash lines in Fig. 5, the

newaeao have been depressed, to normal position.

Just before the crank handle reaches the end of its rearward stroke the toggle members 196 will move out of engagement with the rollers202, and the springs 193 restore the toggle members 188 and the parts connected thereto to normal position. During this actuation the pinions 64 which are in mesh with the sectors will be rotated to advance the digits on the adding wheels 63 a distance corresponding to that to which the sectors have been depressed. In the continued rearward movement of the crank handle, and after the sectors have been restored in the manner just described, the dog 147 will engage the stud 149 and break the toggle 124, 126, at 125, and thereby move the bell crank 120 with the accumulator control-bar 137 toward the front of the machine, which latter bar, through engagement with the stud 140 of the accumulator, acts to move the pinions 64 out of mesh with the sectors 16. At the completion of this move ment the toggle member 131 straightens and engages the stud 134 on the arm 129 and thereby locks the accumulator in the outward, or inoperative, position. In the preceding operation, where the adding wheels 63 have been turned by the rise of the sectors 16, if a sector has been depressed to a digit in a column which, added to the digit on the adding wheel of that column appearing through the sight opening. 57, will amount to more than nine, the stud 70 on such adding wheel will engage the arm 92 of the carry-over lock 91, and raise the dog 93 sothat theguard will spring inward against the lug 96 to carry its end 87 under said dog. This occurs while the sectors are moving upward and while in mesh with the pinions 64 of the accumulator. As the sectors are restored to normal, the carry overs 72 are prevented from being drawn inward by their springs 73, by reason of the fact that the nose-pieces 98 of the accumu-- lators are in engagement with the forward edge of the slide-plate 99. After the sectors have been fully raised, however, the accumulator frame will then be rocked outward by means of the accumulator control-bar 137, in the manner previously described. In this rocking movement of the accumulator the nose-piece 98 will be turned out of locking position being shown in Fig. 7.-

Such carry-overs as will thus have been permitted to move inward will now have their nose-pieces 98 in engagement with the forward edge of the slide-plate 99, as shown also in Fig. 7. In the next forward movement of the crank handle the slide-plate 99 will be drawn rearward and then released in the manner heretofore described, said slideplate in its rearward movement turning the carry-overs 7 2 outward a sufficient distance to permit the ,dog 93 of the carry-over lock 91 to fall behind the end 87 of the guard 85, and in front of the shoulder 94, and as the slide-plate 99snaps back to normal position the springs 73 of the carry-overs will then draw them slightly toward the adding wheels so that the dogs 93 will again engage the shoulders 94 of the carry-overs.

The mechanism by which the printing or listing is accomplished will nowbe described. Pivoted loosely on the main actuat ng shaft 11 is a short lever arm 204 (Figs. 2 and 7) to which is pivotally connected, as at 205, one end of a connecting link 206, whoseopposite end is pivotally connected to a lever arm 207 fixedly secured on the end of a rock shaft 208 extending through and ournaled on two side frame members 209consti tuting the support for the hammer mechamsm to be presently described. The arm 204 and link bar 206 constitute a toggle for effecting the actuation of the lever arm 207. Fixedly secured on the main actuating shaft 11 is'a double dog or tappet comprisingarms 210 and 211. ,Normally, the tappet 210 engages a stud 212 at the point 205 between the members 204 and 206, thereby breaking the toggle, as shown more clearly in full lines 1 n Figs. 2 and 7, when the crank handle 12 is in 1ts rearmost position; and the arm 211 is positioned'with respect to the arm 210 so as g to engage the stud 212 and effect the straightening of the toggle when the crank handle has reached the limit of its forward stroke,

which position is more clearly shown in dot and dash lines in Fig. 7, and during which actuation the lever arm 207 is-moved rearward.

Fixedly secured on the end of the rock shaft 208 opposite to that on which the lever arm 207 is mounted is a'second lever arm 213 (Fig. 8) corresponding to said lever arm 207. Connecting the upper ends of the lever arms 207, 213, is a rod 214,-having pivotally mounted thereon a. series of dogs 215. Projecting from each. of thedogs 215 is a toe piece 216 adapted to slidably engage the arcuate lower end portion 217 of the respective heads 37 of the listing sectors 20, said sectors serving to normally hold the do 8 215,

in raised position. Pivotally'mounte on a cross shaft 218 between the side frame members 209 are a. series of hammer actuators 219 which are enlarged at their outer ends to provide heads 220. These heads are provided ontheir under sides withshoulders 221, and beyond said shoulders are upwardinclined nose;pieces 222. The heads 220 have upward extensions terminatin with catches or hooks 223 which are normal y engaged by s1m1lar catch portions 224 provided on tripper members 225. These tripper members are journaled on a cross shaft 226 mounted in the side frame members 209 and said tripper members are provided on their upper sides with inclined shoulders 227. The dogs 215 are provided near their ends with downward projecting shoulders 228, inclined like the shoulders 227 'on the trippers, the dogs serving as actuators for the trippers in a manner as will presently more fully appear. It will be understood that there will be as many hammer actuators and trippers as there are hammers to be actuated, and that the description of one unit of this mechanism will apply to all of the hammer right, (see Fig. 10) each arm in its order is provided on one side with a. laterall projecting finger 232 which projects un er the adjacent arm to the right, so that as each arm, except the first one at the right, is raised, it will raise one or more arms to the right, until, when the last arm on the left is raised,'all of the arms will be raised by the engagement of each finger 232 with an adjacent arm to the right. A cross shaft 233 is mounted at its ends in the two side frame members 209, and on this shaft is journaled a series of hammers 234, one hammer being provided for each type sector. Each hammer is provided at its upper end with a hammer head 235 with its operative face so inclined that it will strike flush against the mal position all of the hammer actuatorslie with their shoulders 221 above a cross rod 239 which is mounted on the upper ends of lever arms 240, which are, in turn, mounted on a cross rod 241 which is journaled in the .side frame members 209, said lever arms 240 being connected below their pivotal axes with the lower end portions of the lever arms 207 and 213 by links 242 whereby, when the said lever arms 207, 213, are rocked, a like motion is imparted to the leverarms 240 so as to move the cross rod 239 from under the shoulders 221 of the hammer actuators 219.

In operation, one or more of the sectors 16 having been depressed, the corresponding type sectors 20 will be raised out of engagement with the extensions 216 of the cordrop so as to bring their inclined shoulders 228 into position to engage the inclined shoulders 227 on the tripper 225. As the crank handle 12 is pulled forward the dog or tappet 211 will be moved rearward into engagement with thestud 212 thereby straightening the toggle 204, 206, and mov: ing the lever arm 207 rearwarda This acts to impart a similar motion to the lever arms 240 by reason of the pivotal link connections 242 between the lever arms 207, 213, and 240, and whereby the cross rod 239 is moved from under the shoulders 221 of the hammer actuators 219. In this same movement the shoulders 228 of the dogs 215 will engage the shoulders 227 of the trippers 225 and the trippers are thereby rocked until their catches 224 are turned out of engagement with the catches 223 of the hammer actuators 219, whereby the hammer actuatorsso released will be at once drawn down by coil springs 243 against a stop bar 244 secured at its ends to the side members 209. In this movement of the hammer actuators each stud 238 on a'released hammer actuator 219, will engage the bottom of the recess 237 of the crank extension 236 and throw the hammer head 235 rearward to efi'ect the printing operation. By reason of the enlargement of the slot 237, after the hammer head has struck, it will be permitted to slightly rebound. This prevents a prolonged contact of the ribbon with the paper which would tend to blur the impression of the type. The printing operation just described occurs after the sectors 16 have been depressed, and the type sectors 20 correspondingly raised, and both sets of sectors are at rest. In the foregoing operation, if a single sector 16 to the left of the first column of numbers is depressed, all of the arms 229 to the right of the hammer actuator released by the upward movement of the type-sector 20 of such depressed sector will be raised by the fingers 232 to trip the other hammer actuators to print all zeros; or, if sectors 16 in the other colurnfis'have been depressed, to print zeros from all intermediate type sectors to the right which have not been raised. The actuation of the hammer mechanism above described is effected during the forward movement of the .moving the lever arms 207, 213, and 240 back to normal position, thereby moving the cross rod 239 into contact with the nosepieces 222 of the hammer actuators 219, and raising all of the hammer actuators, or such as have been actuated, to normal position. In this movement, the dogs 215 are drawn forward, permitting the arms 229 of the trippers 225 to be drawn downward by the spring 230, which, of course, through the medium of the fingers 232, will serve to draw'down all of the arms 229 which may have been raised in the manner previously described, and again bring the catches 224 in position under the catches 223 of the hammer actuators 219. The type sectors 20 which may have been raised are now lowered b the restoration of the sectors 16 to normai position, through the mechanism described more particularly in connection with Fig. 5 of the drawings, and the arcuate end portions 217 of the sectors 20 engage the toe portions 216 of the dogs 215 and thereby lift the latter to the elevated qr normal position. .As the hammer actuators 219 are raised by the restorer bar 239 the studs 238 engage the upper wall of the recesses 237 to permit the lever 31 to be depressed just short distance before the lever 31 may befully depressed. During this initial movement of'the crank handle the slide-plate 99 has been actuated to restore the carry-overs 72 to normal through the action of the toggle member 114 and bell crank 109, as previously described. When the shaft 11, however, has been turned a sufiicient distance to carry the stop plate 245 out of the path ofthe roller 246, the lever 31 may be fully depressed to bring the recess 139 into enfullest extent the cross rod 35 engages the arms 24 of the dogs 23 thereby moving the friction rollers25 out of engagement with the respective recesses 18 of the sectors 16, whereupon the springs 29 move the sectors downward, rotating the adding wheels until the studs 70 come in contact with the upper ends of the arms 92 of the carry-over locks 91, when the further motion of the adding wheels and also of the sectors will be arrested. In this movement, the type sectors 20 will be raised a distance corresponding to the distance the various adding wheel sectors 16 descend, and the printing operation occurs in the manner previously stated. Immediately after the operation of printing, the dog 148 will engage the stud 150 of the crank arm 129, and by rocking the. bell crank 120 rearward, as previously described, will throw the accumulator out of engagement with the sectors 16, owing to the engagement of the recessed portion 139 with the stud 141. After the pinions 64 are disengaged from the sectors 16 the latter are moved down into engagement with the cross bar 185 by the springs 29. This occurs just before the crank handle 12 reaches theend of its forward stroke. On the return stroke of the crank handle the bar 185'is raised by the engagement of the toggle members 196.

with the rollers 202 on the extensions 203 of the bell cranks 189, as previously described, thereby restorin the sectors to normal position. The tota has now been printed, the, accumulator cleared, and the entire mech-- anism is at normal, so that the machine is in condition for the setting down and listing of another sum. L

he operation of taking a sub-totalwill now be described. 7

In this operation the lever 31 is depressed the same as in taking a total, except that it is released just after the sectors 16 have been released in the manner previously described to rotate the adding wheels 63 back to zero osition, or in other words, with their studs (0 in contact with the upper ends of the arms 92 of the carry-over locks 91. As the lever 31 is thus released, a stop portion 248 140. In the movement of the accumulator. to bring the pinions 64 into mesh w1ththe sectors 16. the upper recess 152 in the extension 151 of the accumulator side plate will have been turned into engagement with the roller 157 on the spring-pressed bell crank 154 which acts to hold the accumulator in its engaging posit-ion. The contact of the stop portion 248 with the stud 140 holds the accumulator control-bar 137 in neutral position until immediately after the opera the crank handle 12 the sectors 16 are raised 1 by the mechanism previously described, and while still in contact with the pinions of the adding wheels, thereby restoring the adding wheels to'the position they occupied at the beginnin of the operation. Just before the end of t e rearward stroke of the crank handle the dog 147 engages the stud 149 of the crank arm 124, and by rocking the bell crank lever 120 will throw the accumulator control-bar 137 forward and thereby move the accumulator to carry the pinions 64' out of mesh with the sectors 16. In this move- Inent the groove 153 will move into engag pressed bell crank 154 which serves to he (1 the accumulator in its retracted or normal position. The adding wheels now show the total which has just been printed, and the machine is ready for the setting down and listing of a further sum which is added to the total, or rather sub-total in such an instance, previously struck, the grand total being held in the accumulator as a further sub-total or taken as a final grand total and the accumulator cleared, as desired.

In the operation of setting down an item, if an error is noticed before the crank handle has been pulled forward a distance sufii- 9'5 ment with the roller 157 on the sprin cient to effect the engagement of the accumulator with the adding wheel sectors, the particular sector or sectors which may have readily moved up or down to the proper position, or in case a sector has been depressed in the wrong column, the same may be moved back to normal position and the proper sector depressed, owing to the yieldable engagement of the dogs 23 with the serrated edge portions 18 of the sectors. Hence, the necessity for providing a ecial error key and mechanism for accomplishing the urpose is obviated. r

e construction and arrangement of the machine also permits the printing of an item without adding it, or in other words, without placing it in the accumulator.- To accomplish this, the particular 'sector or sectors 16 having been depressed, the leveri31 is depressed until the roller 246 engages the stop plate 245, in which position the lever is held by the 0 erator until the crank handle' has been pul ed all the wayforward, during which time the printing of the item has been effected and the sectors restored to normal position. By so holding the lever 31, the accumulator control-bar 137 is held in neutral position so as not to engageeither of the studs 140 or 141, and therefore the accumulator is not brought into engagement with the sectors.

I claim:

.1. In an adding machine, the combination with a series of pivoted, toothed sectors and means for manually turning each sector through any required degree of its total are of movement, of a pivotally mounted accumulator, a main actuating shaft and a crank handle for turning the same, mechanism actuated by said shaft in the forward movement of the crank handle to draw said accumulator into operative engagement with the sectors, and in the return movement of the crank handle to move the accumulator out of engagement with said sectors, a pivotallysupported bar extending underneath all of said sectors, spring-controlled lever mecha nism connected with the supports of said bar, and means carried by said shaft and adapted to engage said lever mechanism in the return movement of the shaft to raise said bar and thereby return the sectors to zero in advance of the disengagement of the accumulator from the sectors and then to release the same to permit the bar to be turned to normal position by said lever mechanism.

2. In an adding machine, the combination with a series of pivoted, toothed sectors and means for manually turning each sector through any required degree of its total are of movement, of a pivotally mounted accumulator, a main actuating shaft and a crank handle for turning the same, mechanism actuated by said shaft in the forward movement of the crank handle to effect operative engagement of the accumulator with the toothed sectors, and in the return movement of the crank handle to move the accumulator out of engagement with said sectors, a pivotally-supported bar extending underneath all of said sectors, spring-controlled lever mechanism connected with the supports of said bar, and a pivoted dog carried by said shaft and adapted to engage said lever mechanism in the return movement of the shaft to raise said bar and thereby return the sectors to zero in advance of the disengagement of the accumulator from the' sectors and then to release the same to permit the bar to be returned to normal position by said lever mechanism.

3. In an adding machine, the combination with a series of pivoted adding wheel sectors, each of which is manually movable through any required degree of its total are of movement, of a main actuating shaft and a crank handle for turning the same, a pivotally-supported bar extending underneath all of said sectors, a toggle lever pivotally connected to the support of said bar, a contact member mounted'on said toggle lever, a spring-controlled dog carried b said actuating shaft and movable in t e forward movement of the crank handle to a position to engage said contact member and in the return movement of the crank handle to engage and straighten saidtoggle lever whereby to raise said bar and return the sectors to zero and then to release said contact member, and a spring for returning said toggle lever to its normal position.

4. In an adding machine, the combination with a series of pivoted, toothed sectors and means for manually turning each sector through any required degree of its total are of movement, of a main actuating shaft, and means for returning the sectors to zero comprising a pivotally supported bar extending underneath all of said sectors, a toggle lever having one member pivotally connected to the support of said bar, a toe piece on the other member engaging a fixed part of the machine, a spring connected to the latter member and normally holding it in such engagement, a contact member on said toggle lever, a spring-controlled dog carried by said actuating shaft and movable in the forward movement of the main actuating shaft to a position to engage said contact member and in the reverse movement of the shaft to first engage and straighten said toggle lever whereby to raise said bar and return the sectors to zero, and then to release said contact member to permit said spring to return the toggle levers and said bar to normal position.

5. In an adding machine, the combination with a series of pivoted, toothed sectors and means for manually turning each sector through any required degree of its total are of movement, of a pivotally mounted accumulator, a main actuating shaft and a crank handle for turning the same, a bar releasably engaging said accumulator, means actuated by the shaft for moving said bar to turn the accumulator into or out of operative relation with said'sectors, a link pivotally connected at one end to said bar, and a depressible key lever ivotally connected to the other end of said ink.

6. In an addin machine, the combination with a series of pivoted, toothed sectors, each of which is provided with a serrated rear for through any required degree of its total arm of movement under the control of its dog, a bar extending over all of said dogs, and a pivotally mounted key lever connected to said bar for moving the same whereby, on depressing said lever, said bar will be caused to move all of said dogs out of engagement with the serrated edges of the sectors and permit them to fall.

7. In an adding machine, the combination with a series of pivoted, toothed sectors and means for manuall I turning each sector through any require degree of its total are of movement, of a plurality of means yieldably engaging the respective sectors for holding them in any position to which they may be moved, and means for simultaneously releasing. all of said sectors.

8. In an adding machine, in combination with sectors and means for manually actuating the same, an accumulator pivotally mounted in'the machine involvin carry-over mechanism, a main actuating s aft, means operated thereby for restoring the carryover mechanism to normal, engaging members located on opposite sides of the pivot of said accumulator, a pivotally-mounted bar releasably engaging one of the said engaging members,-a link pivotally connected at one end to said bar, a key lever pivotally connected to the other end of said link and depressible to move said bar into engagement with the other engaging member, an arm on said .key lever, means operated by said shaft to actuate said bar to move the movement of said bar into engagement with the latter engaging member until the actuating shaft has been turned to restore the carry-over mechanism to normal.

9. In an adding machine, the combination with a series of pivoted adding wheel sectors, each of which is manually movable through any required degree of its total are of movement, of an actuating shaft, a listing sector formed as a unitary part of each adding wheel sector, a series of type bars slidably mounted in each listing sector, hammer mechanism including a series of hammers adapted for cooperation with said type bars, means operated-by. said shaft for actuating said hammer mechanism, and mechanism controlled by said listing sectors and releasable thereby to place in operation the hammers corresponding to the type sectors moved by the corresponding adding wheel sectors. 1

10. In an adding machine, the combination with a series of pivoted adding wheel sectors, each of which is manually movable through any required degree of its total are of movement, of a -main actuating shaft, means for turning said shaft, a listing sector formed as 'a unitary part of and movable in unison with each adding wheel sector, a series of spring-controlled type bars slidably mounted in each listing sector, hammer mechanism including hammers adapted to cooperate with the various type bars of the respective listing sectors, means operated by said shaft for actuating the hammer mechanism, and a series of members, one of which is controlled by each listing sector and is adapted to be released by the movement of the listing sector to place a corresponding hammer into operatlve relation with the hammer mechanism to be actuated thereby.

1-1. In an addin machine, in combination with a rocking ad ing wheel sector, a listing sector constructed as a unitary part of the adding wheel sector and having a series of spring-controlled type bars slidably mounted t erem at varying an les, permitting each of said ty e-bars to be rought to a substantially horizontal position.

In testimony whereof, I have hereunto set my hand.

' WALTER F. MCGALEB. 

